Skull
a framework of bone or cartilage enclosing the brain of a vertebrate; the skeleton of a person's or animal's head.

Big Brown Bat

Common Muskrat

Lynx

Mountain Lion

Red Fox

Shrew

Snowshoe Hare

Wolverine
a framework of bone or cartilage enclosing the brain of a vertebrate; the skeleton of a person's or animal's head.
Big Brown Bat
Common Muskrat
Lynx
Mountain Lion
Red Fox
Shrew
Snowshoe Hare
Wolverine